Getting a flu shot often protects you from coming down with the flu. And although the flu shot doesn’t always provide total protection, it’s worth getting.

This year’s annual flu shot will offer protection against H1N1 flu (swine flu) virus, in addition to two other influenza viruses that are expected to be in circulation this flu season. A new vaccine that protects against four strains of the virus will also be available, as will a high-dose flu vaccine for adults age 65 and older.

Influenza is a respiratory infection that can cause serious complications, particularly to young children and to older adults. Flu shots are the most effective way to prevent influenza and its complications.

The Centers for Disease Control and Prevention (CDC) recommends that everyone 6 months of age or older be vaccinated annually against influenza.